3 * Private header for Direct Rendering Manager
5 * \author Rickard E. (Rik) Faith <faith@valinux.com>
6 * \author Gareth Hughes <gareth@valinux.com>
10 * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
11 * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
12 * All rights reserved.
14 * Permission is hereby granted, free of charge, to any person obtaining a
15 * copy of this software and associated documentation files (the "Software"),
16 * to deal in the Software without restriction, including without limitation
17 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
18 * and/or sell copies of the Software, and to permit persons to whom the
19 * Software is furnished to do so, subject to the following conditions:
21 * The above copyright notice and this permission notice (including the next
22 * paragraph) shall be included in all copies or substantial portions of the
25 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
26 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
27 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
28 * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
29 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
30 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
31 * OTHER DEALINGS IN THE SOFTWARE.
37 /* If you want the memory alloc debug functionality, change define below */
38 /* #define DEBUG_MEMORY */
42 /* add include of current.h so that "current" is defined
43 * before static inline funcs in wait.h. Doing this so we
44 * can build the DRM (part of PI DRI). 4/21/2000 S + B */
45 #include <asm/current.h>
46 #endif /* __alpha__ */
47 #include <linux/config.h>
48 #include <linux/module.h>
49 #include <linux/kernel.h>
50 #include <linux/miscdevice.h>
52 #include <linux/proc_fs.h>
53 #include <linux/init.h>
54 #include <linux/file.h>
55 #include <linux/pci.h>
56 #include <linux/jiffies.h>
57 #include <linux/smp_lock.h> /* For (un)lock_kernel */
59 #include <linux/cdev.h>
60 #if defined(__alpha__) || defined(__powerpc__)
61 #include <asm/pgtable.h> /* For pte_wrprotect */
65 #include <asm/uaccess.h>
69 #if defined(CONFIG_AGP) || defined(CONFIG_AGP_MODULE)
70 #include <linux/types.h>
71 #include <linux/agp_backend.h>
73 #include <linux/workqueue.h>
74 #include <linux/poll.h>
75 #include <asm/pgalloc.h>
78 #define __OS_HAS_AGP (defined(CONFIG_AGP) || (defined(CONFIG_AGP_MODULE) && defined(MODULE)))
79 #define __OS_HAS_MTRR (defined(CONFIG_MTRR))
81 #include "drm_os_linux.h"
83 /***********************************************************************/
84 /** \name DRM template customization defaults */
87 /* driver capabilities and requirements mask */
88 #define DRIVER_USE_AGP 0x1
89 #define DRIVER_REQUIRE_AGP 0x2
90 #define DRIVER_USE_MTRR 0x4
91 #define DRIVER_PCI_DMA 0x8
92 #define DRIVER_SG 0x10
93 #define DRIVER_HAVE_DMA 0x20
94 #define DRIVER_HAVE_IRQ 0x40
95 #define DRIVER_IRQ_SHARED 0x80
96 #define DRIVER_IRQ_VBL 0x100
97 #define DRIVER_DMA_QUEUE 0x200
98 #define DRIVER_FB_DMA 0x400
100 /***********************************************************************/
101 /** \name Begin the DRM... */
104 #define DRM_DEBUG_CODE 2 /**< Include debugging code if > 1, then
105 also include looping detection. */
107 #define DRM_HASH_SIZE 16 /**< Size of key hash table. Must be power of 2. */
108 #define DRM_KERNEL_CONTEXT 0 /**< Change drm_resctx if changed */
109 #define DRM_RESERVED_CONTEXTS 1 /**< Change drm_resctx if changed */
110 #define DRM_LOOPING_LIMIT 5000000
111 #define DRM_TIME_SLICE (HZ/20) /**< Time slice for GLXContexts */
112 #define DRM_LOCK_SLICE 1 /**< Time slice for lock, in jiffies */
114 #define DRM_FLAG_DEBUG 0x01
116 #define DRM_MEM_DMA 0
117 #define DRM_MEM_SAREA 1
118 #define DRM_MEM_DRIVER 2
119 #define DRM_MEM_MAGIC 3
120 #define DRM_MEM_IOCTLS 4
121 #define DRM_MEM_MAPS 5
122 #define DRM_MEM_VMAS 6
123 #define DRM_MEM_BUFS 7
124 #define DRM_MEM_SEGS 8
125 #define DRM_MEM_PAGES 9
126 #define DRM_MEM_FILES 10
127 #define DRM_MEM_QUEUES 11
128 #define DRM_MEM_CMDS 12
129 #define DRM_MEM_MAPPINGS 13
130 #define DRM_MEM_BUFLISTS 14
131 #define DRM_MEM_AGPLISTS 15
132 #define DRM_MEM_TOTALAGP 16
133 #define DRM_MEM_BOUNDAGP 17
134 #define DRM_MEM_CTXBITMAP 18
135 #define DRM_MEM_STUB 19
136 #define DRM_MEM_SGLISTS 20
137 #define DRM_MEM_CTXLIST 21
139 #define DRM_MAX_CTXBITMAP (PAGE_SIZE * 8)
143 /***********************************************************************/
144 /** \name Backward compatibility section */
147 #define DRM_RPR_ARG(vma) vma,
149 #define VM_OFFSET(vma) ((vma)->vm_pgoff << PAGE_SHIFT)
153 /***********************************************************************/
154 /** \name Macros to make printk easier */
160 * \param fmt printf() like format string.
161 * \param arg arguments
163 #define DRM_ERROR(fmt, arg...) \
164 printk(KERN_ERR "[" DRM_NAME ":%s] *ERROR* " fmt , __FUNCTION__ , ##arg)
167 * Memory error output.
169 * \param area memory area where the error occurred.
170 * \param fmt printf() like format string.
171 * \param arg arguments
173 #define DRM_MEM_ERROR(area, fmt, arg...) \
174 printk(KERN_ERR "[" DRM_NAME ":%s:%s] *ERROR* " fmt , __FUNCTION__, \
175 drm_mem_stats[area].name , ##arg)
177 #define DRM_INFO(fmt, arg...) printk(KERN_INFO "[" DRM_NAME "] " fmt , ##arg)
182 * \param fmt printf() like format string.
183 * \param arg arguments
186 #define DRM_DEBUG(fmt, arg...) \
190 "[" DRM_NAME ":%s] " fmt , \
191 __FUNCTION__ , ##arg); \
194 #define DRM_DEBUG(fmt, arg...) do { } while (0)
197 #define DRM_PROC_LIMIT (PAGE_SIZE-80)
199 #define DRM_PROC_PRINT(fmt, arg...) \
200 len += sprintf(&buf[len], fmt , ##arg); \
201 if (len > DRM_PROC_LIMIT) { *eof = 1; return len - offset; }
203 #define DRM_PROC_PRINT_RET(ret, fmt, arg...) \
204 len += sprintf(&buf[len], fmt , ##arg); \
205 if (len > DRM_PROC_LIMIT) { ret; *eof = 1; return len - offset; }
209 /***********************************************************************/
210 /** \name Internal types and structures */
213 #define DRM_ARRAY_SIZE(x) ARRAY_SIZE(x)
214 #define DRM_MIN(a,b) min(a,b)
215 #define DRM_MAX(a,b) max(a,b)
217 #define DRM_LEFTCOUNT(x) (((x)->rp + (x)->count - (x)->wp) % ((x)->count + 1))
218 #define DRM_BUFCOUNT(x) ((x)->count - DRM_LEFTCOUNT(x))
219 #define DRM_WAITCOUNT(dev,idx) DRM_BUFCOUNT(&dev->queuelist[idx]->waitlist)
221 #define DRM_IF_VERSION(maj, min) (maj << 16 | min)
223 * Get the private SAREA mapping.
225 * \param _dev DRM device.
226 * \param _ctx context number.
227 * \param _map output mapping.
229 #define DRM_GET_PRIV_SAREA(_dev, _ctx, _map) do { \
230 (_map) = (_dev)->context_sareas[_ctx]; \
234 * Test that the hardware lock is held by the caller, returning otherwise.
236 * \param dev DRM device.
237 * \param filp file pointer of the caller.
239 #define LOCK_TEST_WITH_RETURN( dev, filp ) \
241 if ( !_DRM_LOCK_IS_HELD( dev->lock.hw_lock->lock ) || \
242 dev->lock.filp != filp ) { \
243 DRM_ERROR( "%s called without lock held\n", \
250 * Copy and IOCTL return string to user space
252 #define DRM_COPY( name, value ) \
253 len = strlen( value ); \
254 if ( len > name##_len ) len = name##_len; \
255 name##_len = strlen( value ); \
256 if ( len && name ) { \
257 if ( copy_to_user( name, value, len ) ) \
262 * Ioctl function type.
264 * \param inode device inode.
265 * \param filp file pointer.
266 * \param cmd command.
267 * \param arg argument.
269 typedef int drm_ioctl_t(struct inode *inode, struct file *filp,
270 unsigned int cmd, unsigned long arg);
272 typedef int drm_ioctl_compat_t(struct file *filp, unsigned int cmd,
276 #define DRM_MASTER 0x2
277 #define DRM_ROOT_ONLY 0x4
279 typedef struct drm_ioctl_desc {
284 typedef struct drm_devstate {
285 pid_t owner; /**< X server pid holding x_lock */
288 typedef struct drm_magic_entry {
290 struct drm_file *priv;
291 struct drm_magic_entry *next;
294 typedef struct drm_magic_head {
295 struct drm_magic_entry *head;
296 struct drm_magic_entry *tail;
299 typedef struct drm_vma_entry {
300 struct vm_area_struct *vma;
301 struct drm_vma_entry *next;
308 typedef struct drm_buf {
309 int idx; /**< Index into master buflist */
310 int total; /**< Buffer size */
311 int order; /**< log-base-2(total) */
312 int used; /**< Amount of buffer in use (for DMA) */
313 unsigned long offset; /**< Byte offset (used internally) */
314 void *address; /**< Address of buffer */
315 unsigned long bus_address; /**< Bus address of buffer */
316 struct drm_buf *next; /**< Kernel-only: used for free list */
317 __volatile__ int waiting; /**< On kernel DMA queue */
318 __volatile__ int pending; /**< On hardware DMA queue */
319 wait_queue_head_t dma_wait; /**< Processes waiting */
320 struct file *filp; /**< Pointer to holding file descr */
321 int context; /**< Kernel queue for this buffer */
322 int while_locked; /**< Dispatch this buffer while locked */
330 } list; /**< Which list we're on */
332 int dev_priv_size; /**< Size of buffer private storage */
333 void *dev_private; /**< Per-buffer private storage */
336 /** bufs is one longer than it has to be */
337 typedef struct drm_waitlist {
338 int count; /**< Number of possible buffers */
339 drm_buf_t **bufs; /**< List of pointers to buffers */
340 drm_buf_t **rp; /**< Read pointer */
341 drm_buf_t **wp; /**< Write pointer */
342 drm_buf_t **end; /**< End pointer */
343 spinlock_t read_lock;
344 spinlock_t write_lock;
347 typedef struct drm_freelist {
348 int initialized; /**< Freelist in use */
349 atomic_t count; /**< Number of free buffers */
350 drm_buf_t *next; /**< End pointer */
352 wait_queue_head_t waiting; /**< Processes waiting on free bufs */
353 int low_mark; /**< Low water mark */
354 int high_mark; /**< High water mark */
355 atomic_t wfh; /**< If waiting for high mark */
360 * Buffer entry. There is one of this for each buffer size order.
362 typedef struct drm_buf_entry {
363 int buf_size; /**< size */
364 int buf_count; /**< number of buffers */
365 drm_buf_t *buflist; /**< buffer list */
368 unsigned long *seglist;
370 drm_freelist_t freelist;
373 /** File private data */
374 typedef struct drm_file {
381 unsigned long ioctl_count;
382 struct drm_file *next;
383 struct drm_file *prev;
384 struct drm_head *head;
385 int remove_auth_on_close;
386 unsigned long lock_count;
391 typedef struct drm_queue {
392 atomic_t use_count; /**< Outstanding uses (+1) */
393 atomic_t finalization; /**< Finalization in progress */
394 atomic_t block_count; /**< Count of processes waiting */
395 atomic_t block_read; /**< Queue blocked for reads */
396 wait_queue_head_t read_queue; /**< Processes waiting on block_read */
397 atomic_t block_write; /**< Queue blocked for writes */
398 wait_queue_head_t write_queue; /**< Processes waiting on block_write */
400 atomic_t total_queued; /**< Total queued statistic */
401 atomic_t total_flushed; /**< Total flushes statistic */
402 atomic_t total_locks; /**< Total locks statistics */
404 drm_ctx_flags_t flags; /**< Context preserving and 2D-only */
405 drm_waitlist_t waitlist; /**< Pending buffers */
406 wait_queue_head_t flush_queue; /**< Processes waiting until flush */
412 typedef struct drm_lock_data {
413 drm_hw_lock_t *hw_lock; /**< Hardware lock */
414 struct file *filp; /**< File descr of lock holder (0=kernel) */
415 wait_queue_head_t lock_queue; /**< Queue of blocked processes */
416 unsigned long lock_time; /**< Time of last lock in jiffies */
422 typedef struct drm_device_dma {
424 drm_buf_entry_t bufs[DRM_MAX_ORDER + 1]; /**< buffers, grouped by their size order */
425 int buf_count; /**< total number of buffers */
426 drm_buf_t **buflist; /**< Vector of pointers into drm_device_dma::bufs */
428 int page_count; /**< number of pages */
429 unsigned long *pagelist; /**< page list */
430 unsigned long byte_count;
432 _DRM_DMA_USE_AGP = 0x01,
433 _DRM_DMA_USE_SG = 0x02,
434 _DRM_DMA_USE_FB = 0x04
440 * AGP memory entry. Stored as a doubly linked list.
442 typedef struct drm_agp_mem {
443 unsigned long handle; /**< handle */
445 unsigned long bound; /**< address */
447 struct drm_agp_mem *prev; /**< previous entry */
448 struct drm_agp_mem *next; /**< next entry */
454 * \sa drm_agp_init() and drm_device::agp.
456 typedef struct drm_agp_head {
457 DRM_AGP_KERN agp_info; /**< AGP device information */
458 drm_agp_mem_t *memory; /**< memory entries */
459 unsigned long mode; /**< AGP mode */
460 struct agp_bridge_data *bridge;
461 int enabled; /**< whether the AGP bus as been enabled */
462 int acquired; /**< whether the AGP device has been acquired */
465 int cant_use_aperture;
466 unsigned long page_mask;
470 * Scatter-gather memory.
472 typedef struct drm_sg_mem {
473 unsigned long handle;
476 struct page **pagelist;
480 typedef struct drm_sigdata {
485 typedef struct drm_dma_handle {
494 typedef struct drm_map_list {
495 struct list_head head; /**< list head */
496 drm_map_t *map; /**< mapping */
497 unsigned int user_token;
500 typedef drm_map_t drm_local_map_t;
503 * Context handle list
505 typedef struct drm_ctx_list {
506 struct list_head head; /**< list head */
507 drm_context_t handle; /**< context handle */
508 drm_file_t *tag; /**< associated fd private data */
511 typedef struct drm_vbl_sig {
512 struct list_head head;
513 unsigned int sequence;
515 struct task_struct *task;
518 /* location of GART table */
519 #define DRM_ATI_GART_MAIN 1
520 #define DRM_ATI_GART_FB 2
522 typedef struct ati_pcigart_info {
523 int gart_table_location;
527 drm_local_map_t mapping;
528 } drm_ati_pcigart_info;
531 * DRM driver structure. This structure represent the common code for
532 * a family of cards. There will one drm_device for each card present
538 int (*load) (struct drm_device *, unsigned long flags);
539 int (*firstopen) (struct drm_device *);
540 int (*open) (struct drm_device *, drm_file_t *);
541 void (*preclose) (struct drm_device *, struct file * filp);
542 void (*postclose) (struct drm_device *, drm_file_t *);
543 void (*lastclose) (struct drm_device *);
544 int (*unload) (struct drm_device *);
545 int (*dma_ioctl) (DRM_IOCTL_ARGS);
546 void (*dma_ready) (struct drm_device *);
547 int (*dma_quiescent) (struct drm_device *);
548 int (*context_ctor) (struct drm_device * dev, int context);
549 int (*context_dtor) (struct drm_device * dev, int context);
550 int (*kernel_context_switch) (struct drm_device * dev, int old,
552 void (*kernel_context_switch_unlock) (struct drm_device * dev,
554 int (*vblank_wait) (struct drm_device * dev, unsigned int *sequence);
555 int (*dri_library_name) (struct drm_device *dev, char *buf);
558 * Called by \c drm_device_is_agp. Typically used to determine if a
559 * card is really attached to AGP or not.
561 * \param dev DRM device handle
564 * One of three values is returned depending on whether or not the
565 * card is absolutely \b not AGP (return of 0), absolutely \b is AGP
566 * (return of 1), or may or may not be AGP (return of 2).
568 int (*device_is_agp) (struct drm_device * dev);
570 /* these have to be filled in */
572 irqreturn_t(*irq_handler) (DRM_IRQ_ARGS);
573 void (*irq_preinstall) (struct drm_device * dev);
574 void (*irq_postinstall) (struct drm_device * dev);
575 void (*irq_uninstall) (struct drm_device * dev);
576 void (*reclaim_buffers) (struct drm_device * dev, struct file * filp);
577 void (*reclaim_buffers_locked) (struct drm_device *dev,
579 unsigned long (*get_map_ofs) (drm_map_t * map);
580 unsigned long (*get_reg_ofs) (struct drm_device * dev);
581 void (*set_version) (struct drm_device * dev, drm_set_version_t * sv);
592 drm_ioctl_desc_t *ioctls;
594 struct file_operations fops;
595 struct pci_driver pci_driver;
599 * DRM head structure. This structure represent a video head on a card
600 * that may contain multiple heads. Embed one per head of these in the
601 * private drm_device structure.
603 typedef struct drm_head {
604 int minor; /**< Minor device number */
605 struct drm_device *dev;
606 struct proc_dir_entry *dev_root; /**< proc directory entry */
607 dev_t device; /**< Device number for mknod */
608 struct class_device *dev_class;
612 * DRM device structure. This structure represent a complete card that
613 * may contain multiple heads.
615 typedef struct drm_device {
616 char *unique; /**< Unique identifier: e.g., busid */
617 int unique_len; /**< Length of unique field */
618 char *devname; /**< For /proc/interrupts */
619 int if_version; /**< Highest interface version set */
621 int blocked; /**< Blocked due to VC switch? */
625 spinlock_t count_lock; /**< For inuse, drm_device::open_count, drm_device::buf_use */
626 struct semaphore struct_sem; /**< For others */
629 /** \name Usage Counters */
631 int open_count; /**< Outstanding files open */
632 atomic_t ioctl_count; /**< Outstanding IOCTLs pending */
633 atomic_t vma_count; /**< Outstanding vma areas open */
634 int buf_use; /**< Buffers in use -- cannot alloc */
635 atomic_t buf_alloc; /**< Buffer allocation in progress */
638 /** \name Performance counters */
640 unsigned long counters;
641 drm_stat_type_t types[15];
645 /** \name Authentication */
647 drm_file_t *file_first; /**< file list head */
648 drm_file_t *file_last; /**< file list tail */
649 drm_magic_head_t magiclist[DRM_HASH_SIZE]; /**< magic hash table */
652 /** \name Memory management */
654 drm_map_list_t *maplist; /**< Linked list of regions */
655 int map_count; /**< Number of mappable regions */
657 /** \name Context handle management */
659 drm_ctx_list_t *ctxlist; /**< Linked list of context handles */
660 int ctx_count; /**< Number of context handles */
661 struct semaphore ctxlist_sem; /**< For ctxlist */
663 drm_map_t **context_sareas; /**< per-context SAREA's */
666 drm_vma_entry_t *vmalist; /**< List of vmas (for debugging) */
667 drm_lock_data_t lock; /**< Information on hardware lock */
670 /** \name DMA queues (contexts) */
672 int queue_count; /**< Number of active DMA queues */
673 int queue_reserved; /**< Number of reserved DMA queues */
674 int queue_slots; /**< Actual length of queuelist */
675 drm_queue_t **queuelist; /**< Vector of pointers to DMA queues */
676 drm_device_dma_t *dma; /**< Optional pointer for DMA support */
679 /** \name Context support */
681 int irq; /**< Interrupt used by board */
682 int irq_enabled; /**< True if irq handler is enabled */
683 __volatile__ long context_flag; /**< Context swapping flag */
684 __volatile__ long interrupt_flag; /**< Interruption handler flag */
685 __volatile__ long dma_flag; /**< DMA dispatch flag */
686 struct timer_list timer; /**< Timer for delaying ctx switch */
687 wait_queue_head_t context_wait; /**< Processes waiting on ctx switch */
688 int last_checked; /**< Last context checked for DMA */
689 int last_context; /**< Last current context */
690 unsigned long last_switch; /**< jiffies at last context switch */
693 struct work_struct work;
694 /** \name VBLANK IRQ support */
697 wait_queue_head_t vbl_queue; /**< VBLANK wait queue */
698 atomic_t vbl_received;
700 drm_vbl_sig_t vbl_sigs; /**< signal list to send on VBLANK */
701 unsigned int vbl_pending;
707 struct fasync_struct *buf_async;/**< Processes waiting for SIGIO */
708 wait_queue_head_t buf_readers; /**< Processes waiting to read */
709 wait_queue_head_t buf_writers; /**< Processes waiting to ctx switch */
711 drm_agp_head_t *agp; /**< AGP data */
713 struct pci_dev *pdev; /**< PCI device structure */
714 int pci_domain; /**< PCI bus domain number */
715 int pci_bus; /**< PCI bus number */
716 int pci_slot; /**< PCI slot number */
717 int pci_func; /**< PCI function number */
719 struct pci_controller *hose;
721 drm_sg_mem_t *sg; /**< Scatter gather memory */
722 unsigned long *ctx_bitmap; /**< context bitmap */
723 void *dev_private; /**< device private data */
724 drm_sigdata_t sigdata; /**< For block_all_signals */
727 struct drm_driver *driver;
728 drm_local_map_t *agp_buffer_map;
729 unsigned int agp_buffer_token;
730 drm_head_t primary; /**< primary screen head */
733 static __inline__ int drm_core_check_feature(struct drm_device *dev,
736 return ((dev->driver->driver_features & feature) ? 1 : 0);
740 static inline int drm_core_has_AGP(struct drm_device *dev)
742 return drm_core_check_feature(dev, DRIVER_USE_AGP);
745 #define drm_core_has_AGP(dev) (0)
749 static inline int drm_core_has_MTRR(struct drm_device *dev)
751 return drm_core_check_feature(dev, DRIVER_USE_MTRR);
754 #define DRM_MTRR_WC MTRR_TYPE_WRCOMB
756 static inline int drm_mtrr_add(unsigned long offset, unsigned long size,
759 return mtrr_add(offset, size, flags, 1);
762 static inline int drm_mtrr_del(int handle, unsigned long offset,
763 unsigned long size, unsigned int flags)
765 return mtrr_del(handle, offset, size);
769 #define drm_core_has_MTRR(dev) (0)
771 #define DRM_MTRR_WC 0
773 static inline int drm_mtrr_add(unsigned long offset, unsigned long size,
779 static inline int drm_mtrr_del(int handle, unsigned long offset,
780 unsigned long size, unsigned int flags)
786 /******************************************************************/
787 /** \name Internal function definitions */
790 /* Driver support (drm_drv.h) */
791 extern int drm_init(struct drm_driver *driver);
792 extern void drm_exit(struct drm_driver *driver);
793 extern int drm_ioctl(struct inode *inode, struct file *filp,
794 unsigned int cmd, unsigned long arg);
795 extern long drm_compat_ioctl(struct file *filp,
796 unsigned int cmd, unsigned long arg);
797 extern int drm_lastclose(drm_device_t *dev);
799 /* Device support (drm_fops.h) */
800 extern int drm_open(struct inode *inode, struct file *filp);
801 extern int drm_stub_open(struct inode *inode, struct file *filp);
802 extern int drm_fasync(int fd, struct file *filp, int on);
803 extern int drm_release(struct inode *inode, struct file *filp);
805 /* Mapping support (drm_vm.h) */
806 extern int drm_mmap(struct file *filp, struct vm_area_struct *vma);
807 extern unsigned int drm_poll(struct file *filp, struct poll_table_struct *wait);
809 /* Memory management support (drm_memory.h) */
810 #include "drm_memory.h"
811 extern void drm_mem_init(void);
812 extern int drm_mem_info(char *buf, char **start, off_t offset,
813 int request, int *eof, void *data);
814 extern void *drm_realloc(void *oldpt, size_t oldsize, size_t size, int area);
815 extern unsigned long drm_alloc_pages(int order, int area);
816 extern void drm_free_pages(unsigned long address, int order, int area);
817 extern void *drm_ioremap(unsigned long offset, unsigned long size,
819 extern void *drm_ioremap_nocache(unsigned long offset, unsigned long size,
821 extern void drm_ioremapfree(void *pt, unsigned long size, drm_device_t * dev);
823 extern DRM_AGP_MEM *drm_alloc_agp(drm_device_t * dev, int pages, u32 type);
824 extern int drm_free_agp(DRM_AGP_MEM * handle, int pages);
825 extern int drm_bind_agp(DRM_AGP_MEM * handle, unsigned int start);
826 extern int drm_unbind_agp(DRM_AGP_MEM * handle);
828 /* Misc. IOCTL support (drm_ioctl.h) */
829 extern int drm_irq_by_busid(struct inode *inode, struct file *filp,
830 unsigned int cmd, unsigned long arg);
831 extern int drm_getunique(struct inode *inode, struct file *filp,
832 unsigned int cmd, unsigned long arg);
833 extern int drm_setunique(struct inode *inode, struct file *filp,
834 unsigned int cmd, unsigned long arg);
835 extern int drm_getmap(struct inode *inode, struct file *filp,
836 unsigned int cmd, unsigned long arg);
837 extern int drm_getclient(struct inode *inode, struct file *filp,
838 unsigned int cmd, unsigned long arg);
839 extern int drm_getstats(struct inode *inode, struct file *filp,
840 unsigned int cmd, unsigned long arg);
841 extern int drm_setversion(struct inode *inode, struct file *filp,
842 unsigned int cmd, unsigned long arg);
843 extern int drm_noop(struct inode *inode, struct file *filp,
844 unsigned int cmd, unsigned long arg);
846 /* Context IOCTL support (drm_context.h) */
847 extern int drm_resctx(struct inode *inode, struct file *filp,
848 unsigned int cmd, unsigned long arg);
849 extern int drm_addctx(struct inode *inode, struct file *filp,
850 unsigned int cmd, unsigned long arg);
851 extern int drm_modctx(struct inode *inode, struct file *filp,
852 unsigned int cmd, unsigned long arg);
853 extern int drm_getctx(struct inode *inode, struct file *filp,
854 unsigned int cmd, unsigned long arg);
855 extern int drm_switchctx(struct inode *inode, struct file *filp,
856 unsigned int cmd, unsigned long arg);
857 extern int drm_newctx(struct inode *inode, struct file *filp,
858 unsigned int cmd, unsigned long arg);
859 extern int drm_rmctx(struct inode *inode, struct file *filp,
860 unsigned int cmd, unsigned long arg);
862 extern int drm_ctxbitmap_init(drm_device_t * dev);
863 extern void drm_ctxbitmap_cleanup(drm_device_t * dev);
864 extern void drm_ctxbitmap_free(drm_device_t * dev, int ctx_handle);
866 extern int drm_setsareactx(struct inode *inode, struct file *filp,
867 unsigned int cmd, unsigned long arg);
868 extern int drm_getsareactx(struct inode *inode, struct file *filp,
869 unsigned int cmd, unsigned long arg);
871 /* Drawable IOCTL support (drm_drawable.h) */
872 extern int drm_adddraw(struct inode *inode, struct file *filp,
873 unsigned int cmd, unsigned long arg);
874 extern int drm_rmdraw(struct inode *inode, struct file *filp,
875 unsigned int cmd, unsigned long arg);
877 /* Authentication IOCTL support (drm_auth.h) */
878 extern int drm_getmagic(struct inode *inode, struct file *filp,
879 unsigned int cmd, unsigned long arg);
880 extern int drm_authmagic(struct inode *inode, struct file *filp,
881 unsigned int cmd, unsigned long arg);
883 /* Locking IOCTL support (drm_lock.h) */
884 extern int drm_lock(struct inode *inode, struct file *filp,
885 unsigned int cmd, unsigned long arg);
886 extern int drm_unlock(struct inode *inode, struct file *filp,
887 unsigned int cmd, unsigned long arg);
888 extern int drm_lock_take(__volatile__ unsigned int *lock, unsigned int context);
889 extern int drm_lock_free(drm_device_t * dev,
890 __volatile__ unsigned int *lock, unsigned int context);
892 /* Buffer management support (drm_bufs.h) */
893 extern int drm_addbufs_agp(drm_device_t * dev, drm_buf_desc_t * request);
894 extern int drm_addbufs_pci(drm_device_t * dev, drm_buf_desc_t * request);
895 extern int drm_addbufs_fb(drm_device_t *dev, drm_buf_desc_t *request);
896 extern int drm_addmap(drm_device_t * dev, unsigned int offset,
897 unsigned int size, drm_map_type_t type,
898 drm_map_flags_t flags, drm_local_map_t ** map_ptr);
899 extern int drm_addmap_ioctl(struct inode *inode, struct file *filp,
900 unsigned int cmd, unsigned long arg);
901 extern int drm_rmmap(drm_device_t * dev, drm_local_map_t * map);
902 extern int drm_rmmap_locked(drm_device_t * dev, drm_local_map_t * map);
903 extern int drm_rmmap_ioctl(struct inode *inode, struct file *filp,
904 unsigned int cmd, unsigned long arg);
906 extern int drm_order(unsigned long size);
907 extern int drm_addbufs(struct inode *inode, struct file *filp,
908 unsigned int cmd, unsigned long arg);
909 extern int drm_infobufs(struct inode *inode, struct file *filp,
910 unsigned int cmd, unsigned long arg);
911 extern int drm_markbufs(struct inode *inode, struct file *filp,
912 unsigned int cmd, unsigned long arg);
913 extern int drm_freebufs(struct inode *inode, struct file *filp,
914 unsigned int cmd, unsigned long arg);
915 extern int drm_mapbufs(struct inode *inode, struct file *filp,
916 unsigned int cmd, unsigned long arg);
917 extern unsigned long drm_get_resource_start(drm_device_t * dev,
918 unsigned int resource);
919 extern unsigned long drm_get_resource_len(drm_device_t * dev,
920 unsigned int resource);
922 /* DMA support (drm_dma.h) */
923 extern int drm_dma_setup(drm_device_t * dev);
924 extern void drm_dma_takedown(drm_device_t * dev);
925 extern void drm_free_buffer(drm_device_t * dev, drm_buf_t * buf);
926 extern void drm_core_reclaim_buffers(drm_device_t * dev, struct file *filp);
928 /* IRQ support (drm_irq.h) */
929 extern int drm_control(struct inode *inode, struct file *filp,
930 unsigned int cmd, unsigned long arg);
931 extern irqreturn_t drm_irq_handler(DRM_IRQ_ARGS);
932 extern int drm_irq_uninstall(drm_device_t * dev);
933 extern void drm_driver_irq_preinstall(drm_device_t * dev);
934 extern void drm_driver_irq_postinstall(drm_device_t * dev);
935 extern void drm_driver_irq_uninstall(drm_device_t * dev);
937 extern int drm_wait_vblank(struct inode *inode, struct file *filp,
938 unsigned int cmd, unsigned long arg);
939 extern int drm_vblank_wait(drm_device_t * dev, unsigned int *vbl_seq);
940 extern void drm_vbl_send_signals(drm_device_t * dev);
942 /* AGP/GART support (drm_agpsupport.h) */
943 extern drm_agp_head_t *drm_agp_init(drm_device_t * dev);
944 extern int drm_agp_acquire(drm_device_t * dev);
945 extern int drm_agp_acquire_ioctl(struct inode *inode, struct file *filp,
946 unsigned int cmd, unsigned long arg);
947 extern int drm_agp_release(drm_device_t * dev);
948 extern int drm_agp_release_ioctl(struct inode *inode, struct file *filp,
949 unsigned int cmd, unsigned long arg);
950 extern int drm_agp_enable(drm_device_t * dev, drm_agp_mode_t mode);
951 extern int drm_agp_enable_ioctl(struct inode *inode, struct file *filp,
952 unsigned int cmd, unsigned long arg);
953 extern int drm_agp_info(drm_device_t * dev, drm_agp_info_t * info);
954 extern int drm_agp_info_ioctl(struct inode *inode, struct file *filp,
955 unsigned int cmd, unsigned long arg);
956 extern int drm_agp_alloc(drm_device_t *dev, drm_agp_buffer_t *request);
957 extern int drm_agp_alloc_ioctl(struct inode *inode, struct file *filp,
958 unsigned int cmd, unsigned long arg);
959 extern int drm_agp_free(drm_device_t *dev, drm_agp_buffer_t *request);
960 extern int drm_agp_free_ioctl(struct inode *inode, struct file *filp,
961 unsigned int cmd, unsigned long arg);
962 extern int drm_agp_unbind(drm_device_t *dev, drm_agp_binding_t *request);
963 extern int drm_agp_unbind_ioctl(struct inode *inode, struct file *filp,
964 unsigned int cmd, unsigned long arg);
965 extern int drm_agp_bind(drm_device_t *dev, drm_agp_binding_t *request);
966 extern int drm_agp_bind_ioctl(struct inode *inode, struct file *filp,
967 unsigned int cmd, unsigned long arg);
968 extern DRM_AGP_MEM *drm_agp_allocate_memory(struct agp_bridge_data *bridge,
969 size_t pages, u32 type);
970 extern int drm_agp_free_memory(DRM_AGP_MEM * handle);
971 extern int drm_agp_bind_memory(DRM_AGP_MEM * handle, off_t start);
972 extern int drm_agp_unbind_memory(DRM_AGP_MEM * handle);
974 /* Stub support (drm_stub.h) */
975 extern int drm_get_dev(struct pci_dev *pdev, const struct pci_device_id *ent,
976 struct drm_driver *driver);
977 extern int drm_put_dev(drm_device_t * dev);
978 extern int drm_put_head(drm_head_t * head);
979 extern unsigned int drm_debug;
980 extern unsigned int drm_cards_limit;
981 extern drm_head_t **drm_heads;
982 extern struct drm_sysfs_class *drm_class;
983 extern struct proc_dir_entry *drm_proc_root;
985 /* Proc support (drm_proc.h) */
986 extern int drm_proc_init(drm_device_t * dev,
988 struct proc_dir_entry *root,
989 struct proc_dir_entry **dev_root);
990 extern int drm_proc_cleanup(int minor,
991 struct proc_dir_entry *root,
992 struct proc_dir_entry *dev_root);
994 /* Scatter Gather Support (drm_scatter.h) */
995 extern void drm_sg_cleanup(drm_sg_mem_t * entry);
996 extern int drm_sg_alloc(struct inode *inode, struct file *filp,
997 unsigned int cmd, unsigned long arg);
998 extern int drm_sg_free(struct inode *inode, struct file *filp,
999 unsigned int cmd, unsigned long arg);
1001 /* ATI PCIGART support (ati_pcigart.h) */
1002 extern int drm_ati_pcigart_init(drm_device_t * dev,
1003 drm_ati_pcigart_info * gart_info);
1004 extern int drm_ati_pcigart_cleanup(drm_device_t * dev,
1005 drm_ati_pcigart_info * gart_info);
1007 extern drm_dma_handle_t *drm_pci_alloc(drm_device_t * dev, size_t size,
1008 size_t align, dma_addr_t maxaddr);
1009 extern void __drm_pci_free(drm_device_t * dev, drm_dma_handle_t * dmah);
1010 extern void drm_pci_free(drm_device_t * dev, drm_dma_handle_t * dmah);
1012 /* sysfs support (drm_sysfs.c) */
1013 struct drm_sysfs_class;
1014 extern struct drm_sysfs_class *drm_sysfs_create(struct module *owner,
1016 extern void drm_sysfs_destroy(struct drm_sysfs_class *cs);
1017 extern struct class_device *drm_sysfs_device_add(struct drm_sysfs_class *cs,
1019 extern void drm_sysfs_device_remove(struct class_device *class_dev);
1021 /* Inline replacements for DRM_IOREMAP macros */
1022 static __inline__ void drm_core_ioremap(struct drm_map *map,
1023 struct drm_device *dev)
1025 map->handle = drm_ioremap(map->offset, map->size, dev);
1028 static __inline__ void drm_core_ioremap_nocache(struct drm_map *map,
1029 struct drm_device *dev)
1031 map->handle = drm_ioremap_nocache(map->offset, map->size, dev);
1034 static __inline__ void drm_core_ioremapfree(struct drm_map *map,
1035 struct drm_device *dev)
1037 if (map->handle && map->size)
1038 drm_ioremapfree(map->handle, map->size, dev);
1041 static __inline__ struct drm_map *drm_core_findmap(struct drm_device *dev,
1044 drm_map_list_t *_entry;
1045 list_for_each_entry(_entry, &dev->maplist->head, head)
1046 if (_entry->user_token == token)
1051 static __inline__ int drm_device_is_agp(drm_device_t * dev)
1053 if (dev->driver->device_is_agp != NULL) {
1054 int err = (*dev->driver->device_is_agp) (dev);
1061 return pci_find_capability(dev->pdev, PCI_CAP_ID_AGP);
1064 static __inline__ int drm_device_is_pcie(drm_device_t * dev)
1066 return pci_find_capability(dev->pdev, PCI_CAP_ID_EXP);
1069 static __inline__ void drm_core_dropmap(struct drm_map *map)
1073 #ifndef DEBUG_MEMORY
1074 /** Wrapper around kmalloc() */
1075 static __inline__ void *drm_alloc(size_t size, int area)
1077 return kmalloc(size, GFP_KERNEL);
1080 /** Wrapper around kfree() */
1081 static __inline__ void drm_free(void *pt, size_t size, int area)
1086 /** Wrapper around kcalloc() */
1087 static __inline__ void *drm_calloc(size_t nmemb, size_t size, int area)
1089 return kcalloc(nmemb, size, GFP_KERNEL);
1092 extern void *drm_alloc(size_t size, int area);
1093 extern void drm_free(void *pt, size_t size, int area);
1094 extern void *drm_calloc(size_t nmemb, size_t size, int area);
1099 extern unsigned long drm_core_get_map_ofs(drm_map_t * map);
1100 extern unsigned long drm_core_get_reg_ofs(struct drm_device *dev);
1102 #ifndef pci_pretty_name
1103 #define pci_pretty_name(dev) ""
1106 #endif /* __KERNEL__ */